Printed wiring board and display apparatus

Inactive Publication Date: 2008-08-26
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0005]An object of the present invention is to provide a printed wiring board allowing circuit parts poor in moisture resistance to be stably operated for

Problems solved by technology

The EL display apparatus having the above structure is disadvantageous in that since the insulating substrate of the printed wiring board is made from an organic synthetic resin, moisture is easy to permeate the p

Method used

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  • Printed wiring board and display apparatus
  • Printed wiring board and display apparatus
  • Printed wiring board and display apparatus

Examples

Experimental program
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Example

[0042]As shown in FIG. 8C, like the fabrication step in the first embodiment shown in FIG. 4A, through-holes 46 corresponding to the anode electrodes and cathode electrodes necessary for the simple matrix type EL display apparatus are formed in the glass substrate 41 by using a diamond drill 45. Upon formation of the through-holes 46, since at least the portions of the copper foils 44 located at the positions where the through-holes 46 are to be formed have been already removed as described above, particles of copper softer than glass do not clog spaces among fine particles of diamond of the diamond drill 45. This is effective to eliminate inconveniences caused by clogging of the diamond drill 45 with copper particles, and more specifically, prevent degradation of the drilling performance of the diamond drill 45, breakage of the diamond drill 45, and cracking of the glass substrate 41.

[0043]As shown in FIG. 9A, thin copper electroless plating and thick copper electroplating are sequ...

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Abstract

A printed wiring board includes a glass substrate provided with through-holes, conductive patterns provided on both surfaces of said glass substrate in such a manner as to be made conductive to each other via said through-holes, and a sealing member composed of a silver paste containing an epoxy resin as a binder provided to fill said through-holes. This printed wiring board is advantageous in that circuit parts can be connected to each other without use of any planar special region and moisture does not reach the circuit parts through the printed wiring board. A display apparatus capable of stably displaying pictures for a long-period of time is provided by using the printed wiring board.

Description

RELATED APPLICATION DATA[0001]The present application claims priority to Japanese Application No. P11-271950 filed Sep. 27, 1999, which application is incorporated herein by reference to the extent permitted by law.BACKGROUND OF THE INVENTION[0002]The present invention relates to a printed wiring board including conductive patterns, and a display apparatus including a display device and a drive component for driving the display device.[0003]As one structure of electroluminescence (EL) display apparatus, there has been known a structure wherein a display device is packaged by using a protective glass board, which protects the display device and allows light emitted from the display device to pass therethrough, and a printed wiring board which includes an insulating substrate made from an organic synthetic resin and to which the display device and a drive component therefor are electrically connected.[0004]The EL display apparatus having the above structure is disadvantageous in that ...

Claims

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Application Information

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IPC IPC(8): H05K7/02G09F9/30G09F9/00H01L27/32H01L51/52H05B33/02H05K1/03H05K1/09H05K1/16H05K3/00H05K3/04H05K3/10H05K3/24H05K3/38H05K3/40H05K3/42H05K3/46
CPCH05K3/0094H05K3/4061H01L27/3297H05K2203/0554H05K1/0306H05K1/0366H05K1/095H05K1/16H05K3/048H05K3/108H05K3/245H05K3/388H05K3/427H05K3/4605H05K3/467H05K2201/0317H05K2201/0355H05K2201/0959H05K2201/10128H05K2203/0191H01L51/5237H05K3/426H10K59/179H10K50/8423
Inventor MATSUDA, YOSHINARISUZUKI, YOSHIOODAKE, RYOTAASAI, NOBUTOSHI
Owner SONY CORP
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